MilliporeSigma
All Photos(3)

N3393

Sigma-Aldrich

Naphthol Blue Black

BioReagent, suitable for electrophoresis

Synonym(s):
Amido Black 10B, Acid Black 1, Buffalo Black NBR
Empirical Formula (Hill Notation):
C22H14N6Na2O9S2
CAS Number:
Molecular Weight:
616.49
Colour Index Number:
20470
Beilstein:
5374263
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.32

product line

BioReagent

form

powder

composition

Dye content, ~85%

technique(s)

protein staining: suitable

impurities

≤10% water

suitability

suitable for electrophoresis

SMILES string

[Na+].[Na+].Nc1c(\N=N\c2ccc(cc2)[N+]([O-])=O)c(cc3cc(c(\N=N\c4ccccc4)c(O)c13)S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C22H16N6O9S2.2Na/c23-19-18-12(11-17(39(35,36)37)21(22(18)29)27-24-13-4-2-1-3-5-13)10-16(38(32,33)34)20(19)26-25-14-6-8-15(9-7-14)28(30)31;;/h1-11,29H,23H2,(H,32,33,34)(H,35,36,37);;/q;2*+1/p-2/b26-25+,27-24+;;

InChI key

AOMZHDJXSYHPKS-DROYEMJCSA-L

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Application

Naphthol Blue Black has been used for the staining of western blot membrane for detection of all protein that are transferred to the membrane.

Packaging

25, 100 g in glass bottle

Biochem/physiol Actions

Naphthol blue black dye can be used to stain proteins on polyacrylamide gels, agarose gels and nitrocellulose membranes. After electrophoresis, fixing the proteins in the gel is recommended. The gel can then be stained with 0.1% Naphthol Blue Black in 7% (v/v) acetic acid for at least 2 hr and destained with a soluion of 7% (v/v) acetic acid. Detection sensitivity is approx. 20% that of Coomassie Blue R.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Disc electrophoresis of proteins in the presence of sodium dodecyl sulphate.
E De Vito et al.
Experientia, 22(2), 124-125 (1966-02-15)
Teresa M Lamb et al.
G3 (Bethesda, Md.), 3(12), 2273-2280 (2013-10-22)
Precise control of gene expression is a powerful method to elucidate biological function, and protein overexpression is an important tool for industry and biochemistry. Expression of the Neurospora crassa tcu-1 gene (NCU00830), encoding a high-affinity copper transporter, is tightly controlled
PopF1 and PopF2, two proteins secreted by the type III protein secretion system of Ralstonia solanacearum, are translocators belonging to the HrpF/NopX family.
Meyer D, et al.
Journal of Bacteriology, 188, 4903-4917 (2006)
Joanne Guay et al.
Clinical anatomy (New York, N.Y.), 24(2), 202-208 (2011-02-16)
Regional anesthesia for breast surgery may require a large amount of local anesthetic solution to provide an adequate blockade of all relevant structures. The purpose of this study was to determine the minimal volume of fluid required to anesthetize all
Paul Roach et al.
The journal of physical chemistry. B, 110(41), 20572-20579 (2006-10-13)
Protein adsorption is of major and widespread interest, being useful in the fundamental understanding of biological processes at interfaces through to the development of new materials. A number of techniques are commonly used to study protein adhesion, but few are

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